Why is this topic even up for discussion? Everyone knows the Mob aka Italian Mafia has origins in Sicily. Just cause rappers say they "mob" doesn't mean they started the shit! Italians from the Old Country started it. Why so many rappers glorify it nowadays is beyond me. Hell, Italians didn't/don't even fuck with niggaz back then, as far as organized crime and whatnot and if they did, they probably used 'em as "crash test dummies" (Stacks from Goodfellas comes to mind).
Rappers glorifying the Mob mentality or lifestyle is ass backwards, but if it helps you sell cds, keep doin' your thang.